Any "provocations" by Russia over a deal to reopen Ukrainian ports for grain exports will meet a military response, Ukrainian presidential adviser Mykhailo Podolyak said on Friday.
"1. Ukraine does not sign any documents with Russia. We sign an agreement with Turkey and the UN and undertake obligations to them. Russia signs a mirror agreement with Turkey and the UN," Podolyak wrote on Twitter before an expected signing ceremony in Istanbul.
"2. No escorting of transport by Russian ships and the presence of Russian representatives in our ports. In case of provocations, an immediate military response. 3. All inspections of transport ships will be carried out by joint teams in Turkish waters should the need arise." he said.